This is a note to let you know that I've just added the patch titled
USB: fix autosuspend bug in usb-serial
to the 2.6.36-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-fix-autosuspend-bug-in-usb-serial.patch
and it can be found in the queue-2.6.36 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From abf03184a31a3286fc0ab30f838ddee8ba9f9b7b Mon Sep 17 00:00:00 2001
From: Alan Stern <[email protected]>
Date: Mon, 29 Nov 2010 10:17:22 -0500
Subject: USB: fix autosuspend bug in usb-serial
From: Alan Stern <[email protected]>
commit abf03184a31a3286fc0ab30f838ddee8ba9f9b7b upstream.
This patch (as1437) fixes a bug in the usb-serial autosuspend
handling. Since the usb-serial core now has autosuspend support, it
must set the .supports_autosuspend member in every serial driver it
registers. Otherwise the usb_autopm_get_interface() call won't work.
This fixes Bugzilla #23012.
Signed-off-by: Alan Stern <[email protected]>
Reported-by: Kevin Smith <[email protected]>
Reported-and-tested-by: Simon Gerber <[email protected]>
Reported-and-tested-by: Matteo Croce <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/usb/serial/usb-serial.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -52,6 +52,7 @@ static struct usb_driver usb_serial_driv
.suspend = usb_serial_suspend,
.resume = usb_serial_resume,
.no_dynamic_id = 1,
+ .supports_autosuspend = 1,
};
/* There is no MODULE_DEVICE_TABLE for usbserial.c. Instead
@@ -1331,6 +1332,8 @@ int usb_serial_register(struct usb_seria
return -ENODEV;
fixup_generic(driver);
+ if (driver->usb_driver)
+ driver->usb_driver->supports_autosuspend = 1;
if (!driver->description)
driver->description = driver->driver.name;
Patches currently in stable-queue which might be from [email protected]
are
queue-2.6.36/usb-ehci-fix-obscure-race-in-ehci_endpoint_disable.patch
queue-2.6.36/usb-fix-autosuspend-bug-in-usb-serial.patch
queue-2.6.36/usb-ehci-fix-debugfs-lpm-permissions.patch
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